The answer to this is the remains and waste products of plants, animals and other living things organisms.
        
             
        
        
        
Answer:
brown hair or black hair.
 
        
                    
             
        
        
        
they must be unicellular and microscopic and they must be eukaryotic
 
        
             
        
        
        
Answer: SECONDARY CELL WALL.
Explanation: When cell wall grow,it becomes thickened,then it further deposits new layers of a different material (different from that of the primary cell wall) from where secondary cell wall is formed.
This secondary cell wall is made up of cellulose,hemicellulose,and lignin.
They function in providing additional strength,support, rigidity to cells and the larger plant.
 
        
                    
             
        
        
        
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